dox-, -doxy, dog-, dogma-, dogmato-

(Greek: believe, belief; that which is thought to be true by someone who has the power or right to give orders, make decisions, and to enforce his or her opinions, doctrines, praise, or beliefs)

philodoxical (adjective), more philodoxical, most philodoxical
A reference to someone who is devoted to his or her own opinions: Mrs. Big was a philodoxical person who always had arguments for her own convictions and was very dogmatic.
pseudodox, pseudodoxy
A false or erroneous opinion; holding false opinions.
undogmatic, undogmatical
Not dogmatic; not committed to dogma; no longer influenced by or dependent on any normal religious observance.
Not orthodox; not in accord with approved standardized, or conventional doctrine, method thought, custom, or opinion.
1. An unorthodox opinion, doctrine, or method.
2. A group, or a body of people, holding unorthodox doctrines.

Cross references of word families that are related directly, or indirectly, to: "faith, trust; faithful, trusting; believe, belief": cred-; fid-.